The Nothing Phone (3a) boasts a sleek and modern design with dimensions of 163.5 x 77.5 x 8.4 mm and a weight of 201 grams, making it compact and comfortable to hold. It supports dual Nano-SIM cards and an eSIM, offering flexible connectivity options. The phone is IP64 rated, providing protection against dust and water splashes, making it suitable for everyday use. Additionally, the back features three LED light strips with 26 addressable zones, which can be customized for notifications and camera fill light, adding a unique touch to its design.

The Nothing Phone (3a) features a 6.77-inch AMOLED display with a resolution of 1080 x 2412 pixels and a 20:9 aspect ratio. It supports 1B colors, a 120Hz refresh rate, HDR10+, and peaks at 3000 nits, ensuring vibrant and smooth visuals. The screen is protected by Panda Glass and includes an Always On Display for convenient access to information.

Under the hood, the Nothing Phone (3a) runs on Android 15 with Nothing OS 3.1, powered by the Qualcomm SM7635 Snapdragon 7s Gen 3 chipset. It features an octa-core CPU and an Adreno 710 GPU, providing solid performance for everyday tasks and gaming. The phone comes with internal storage options of 256GB paired with either 8GB or 12GB of RAM, though it lacks a card slot for expandable storage.

The camera setup includes a triple-lens main camera with a 50 MP wide sensor featuring PDAF and OIS, a 50 MP telephoto lens with 2x optical zoom, and an 8 MP ultrawide lens. These cameras support various features like LED flash, panorama, and HDR, and can record 4K video at 30fps and 1080p video at 60/120fps with gyro-EIS. The selfie camera is a 32 MP wide sensor with HDR support and can record 1080p video at 60fps.

The Nothing Phone (3a) features stereo speakers for immersive audio and supports Wi-Fi 802.11 a/b/g/n/ac/6, Bluetooth 5.4, and various positioning systems including GPS, GALILEO, GLONASS, BDS, and QZSS. It also includes NFC and USB Type-C 2.0 connectivity.

The phone is equipped with a substantial 5000 mAh battery, supporting 50W wired charging, which can reach 50% in just 19 minutes and full charge in 56 minutes.

The Nothing Phone (3a) is available in black and other colors, offering a stylish and functional device that caters to modern users' needs.